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Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 120×25 mm, thickness 3 mm 📦#1984

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3D file in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀75 mm and a rectangular section with internal dimensions 120×25 mm. The shell thickness is 3 mm and the total length is 150 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Generation date: 2025-09-25
3D Model Round-to-Rectangular Tube Adapter STL file ⌀75 mm to 120×25 mm, thickness 3 mm

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Free
  • round-to-rectangular-adapter-d_model1984-nb0_dd{id}.stl : 1.9 Mo
STL Mesh quality : Linear deflection 0.0005 Angular deflection 0.05
No compliance warranty No compliance warranty
(Internal and private use, non-commercial – no distribution – no derivatives)
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Values for this model

This model was generated by the Round to rectangular adapter template, with the following values:
Parameter Value
#1 cylinder outer diameter 75 mm
#2 cylinder inlet length 50 mm
#3 rectangle internal length 120 mm
#4 rectangle internal height 25 mm
#5 rectangle inlet length 60 mm
#6 offset Z 0 mm
#7 offset Y 0 mm
#8 total length 150 mm
#9 thickness 3 mm
#10 chamfer chamfers on the outside
of the cylindrical tube
and on the inside of
the rectangular tube
illustration of the parameters
Representation of the parameters

  • If the chamfer option on the ends is enabled, the chamfer length is equal to half the thickness.
  • The stop at the bottom of the rectangular section has a width equal to half the thickness.

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 cylinder outer diameter diaC
#2 cylinder inlet length lentC
#3 rectangle internal length lenIR
#4 rectangle internal height heiIR
#5 rectangle inlet length lentR
#6 offset Z ofsZ
#7 offset Y ofsY
#8 total length lenT
#9 thickness thi
#10 chamfer cha

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To search for a model based on your own parameters, go to the template page Round to rectangular adapter 

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Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 50 mm
rectangle internal length 125 mm
rectangle internal height 22 mm
rectangle inlet length 50 mm
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Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 40 mm
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Parameter Value Unit
cylinder outer diameter 40 mm
cylinder inlet length 40 mm
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Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 38 mm
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Download this file in STL format of a round-to-rectangular adapter with an outer diameter of ⌀75 mm and a rectangular section with inner dimensions 150×30 mm. The shell thickness is 3 mm and the total length is 150 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 75 mm
cylinder inlet length 25 mm
rectangle internal length 150 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
offset Z 3 mm
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Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 46 mm
offset Z 15 mm
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total length 150 mm
thickness 2 mm
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Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
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rectangle internal height 60 mm
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Parameter Value Unit
cylinder outer diameter 128 mm
cylinder inlet length 50 mm
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Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 25 mm
rectangle internal length 145.0 mm
rectangle internal height 70 mm
rectangle inlet length 80 mm
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total length 150 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 mm
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Parameter Value Unit
cylinder outer diameter 42 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 80 mm
rectangle inlet length 50 mm
offset Z 25 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
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File in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 150×50 mm. The wall thickness is 2 mm and the overall length is 150 mm. A chamfer is applied on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 40 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
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File in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with inner dimensions 150×50 mm. The wall thickness is 2 mm and the overall length is 150 mm. A chamfer is present on the outside of the cylindrical end to ease insertion.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 50 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 80 mm
offset Z 0 mm
offset Y 0 mm
total length 150 mm
thickness 2 mm
chamfer chamfer on t...
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀100 mm and a rectangular section with internal dimensions 100×50 mm. The shell thickness is 3 mm and the total length is 100 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis. A chamfer is applied on the outside of the cylindrical end.
Parameter Value Unit
cylinder outer diameter 100 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 50 mm
rectangle inlet length 30 mm
offset Z 3 mm
offset Y 3 mm
total length 100 mm
thickness 3 mm
chamfer chamfer on t...
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Parameter Value Unit
cylinder outer diameter 52 mm
cylinder inlet length 50 mm
rectangle internal length 100 mm
rectangle internal height 60 mm
rectangle inlet length 50 mm
offset Z 3 mm
offset Y 3 mm
total length 120 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 110 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 80 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 40 mm
rectangle inlet length 30 mm
offset Z 10 mm
offset Y 10 mm
total length 100 mm
thickness 3 mm
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Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 48 mm
rectangle inlet length 30 mm
offset Z 15 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfers on ...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀80 mm and a rectangular section with inner dimensions 60×60 mm. The shell thickness is 2 mm and the overall length is 100 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 80 mm
cylinder inlet length 30 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfers on ...
Download this model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀58 mm and a rectangular section with internal dimensions 150×48 mm. The wall thickness is 2 mm and the overall length is 100 mm. The adapter has an offset of 15 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 58 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 48 mm
rectangle inlet length 30 mm
offset Z 15 mm
offset Y 0 mm
total length 100 mm
thickness 2 mm
chamfer chamfers on ...
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Parameter Value Unit
cylinder outer diameter 60 mm
cylinder inlet length 30 mm
rectangle internal length 100 mm
rectangle internal height 45 mm
rectangle inlet length 30 mm
offset Z 15 mm
offset Y 0 mm
total length 90 mm
thickness 2 mm
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Model in STL format of a round-to-rectangular adapter with an outer diameter of ⌀90 mm and a rectangular section with internal dimensions 76×76 mm. The wall thickness is 3 mm and the overall length is 120 mm.
Parameter Value Unit
cylinder outer diameter 90 mm
cylinder inlet length 50 mm
rectangle internal length 76 mm
rectangle internal height 76 mm
rectangle inlet length 50 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer no chamfer
Download this model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀148 mm and a rectangular section with internal dimensions 150×50 mm. The shell thickness is 4 mm and the overall length is 150 mm. The adapter has an offset of 3 mm along the Y axis and 3 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 30 mm
rectangle internal length 150 mm
rectangle internal height 50 mm
rectangle inlet length 80 mm
offset Z 3 mm
offset Y 3 mm
total length 150 mm
thickness 4 mm
chamfer chamfers on ...
3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀120 mm and a rectangular section with inner dimensions 60×60 mm. The shell thickness is 3 mm and the overall length is 120 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 120 mm
cylinder inlet length 20 mm
rectangle internal length 60 mm
rectangle internal height 60 mm
rectangle inlet length 20 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 3 mm
chamfer chamfers on ...
3D model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀20 mm and a rectangular section with inner dimensions 100×30 mm. The wall thickness is 3 mm and the overall length is 70 mm. The adapter has an offset of 5 mm along the Y axis and 5 mm along the Z axis. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 20 mm
cylinder inlet length 20 mm
rectangle internal length 100 mm
rectangle internal height 30 mm
rectangle inlet length 30 mm
offset Z 5 mm
offset Y 5 mm
total length 70 mm
thickness 3 mm
chamfer chamfers on ...
Model in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀148 mm and a rectangular section with internal dimensions 145.0×70 mm. The wall thickness is 3 mm and the total length is 100 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 148 mm
cylinder inlet length 25 mm
rectangle internal length 145.0 mm
rectangle internal height 70 mm
rectangle inlet length 25 mm
offset Z 0 mm
offset Y 0 mm
total length 100 mm
thickness 3 mm
chamfer chamfers on ...
Download this file in STL format of a round-to-rectangular adapter with an external diameter of ⌀122 mm and a rectangular section with inner dimensions 220×90 mm. The wall thickness is 3 mm and the total length is 250 mm. Chamfers are present on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 122 mm
cylinder inlet length 35 mm
rectangle internal length 220 mm
rectangle internal height 90 mm
rectangle inlet length 70 mm
offset Z 0 mm
offset Y 0 mm
total length 250 mm
thickness 3 mm
chamfer chamfers on ...
Download this 3D model in STL format of a round-to-rectangular tube adapter with an external diameter of ⌀42 mm and a rectangular section with inner dimensions 120×40 mm. The wall thickness is 2 mm and the total length is 200 mm. The adapter has an offset of 25 mm along the Z axis. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 42 mm
cylinder inlet length 50 mm
rectangle internal length 120 mm
rectangle internal height 40 mm
rectangle inlet length 100 mm
offset Z 25 mm
offset Y 0 mm
total length 200 mm
thickness 2 mm
chamfer chamfers on ...
Download this file in STL format of a round-to-rectangular tube adapter with an outer diameter of ⌀99.5 mm and a rectangular section with inner dimensions 170×100 mm. The wall thickness is 2 mm and the overall length is 120 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end to ease insertion.
Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 mm
rectangle internal length 170 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 120 mm
thickness 2 mm
chamfer chamfers on ...
Download this 3D file in STL format of a round-to-rectangular adapter with an external diameter of ⌀99.5 mm and a rectangular section with internal dimensions 170×100 mm. The shell thickness is 2 mm and the total length is 180 mm. Chamfers are applied on the outside of the cylindrical end and on the inside of the rectangular end.
Parameter Value Unit
cylinder outer diameter 99.5 mm
cylinder inlet length 30 mm
rectangle internal length 170 mm
rectangle internal height 100 mm
rectangle inlet length 30 mm
offset Z 0 mm
offset Y 0 mm
total length 180 mm
thickness 2 mm
chamfer chamfers on ...